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Finding the Fourth Proportional to 665,812.80, 998,719.20 and 245,252.70

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Solution

The fourth proportional to 665,812.80, 998,719.20 and 245,252.70 is: 367,879.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,812.80 : 998,719.20 = 245,252.70 : x
  2. Step 2: Convert to fraction form
    665,812.80/998,719.20 = 245,252.70/x
  3. Step 3: Cross multiply
    665,812.80x = 998,719.20 × 245,252.70
  4. Step 4: Simplify right side
    665,812.80x = 244,938,580,341.84
  5. Step 5: Solve for x
    x = 244,938,580,341.84/665,812.80
  6. Step 6: Final answer
    x = 367,879.05

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.